An engineer has to design a circuit wired in parallel that uses 4 components with the following internal resistances, branch 1 180Ω, branch 2 470Ω, branch 3 680Ω, and branch 680Ω. In order for the circuit to function properly it needs a total current between .046 and .050 Amps. Analyze the circuit and determine the proper power supply voltage range to ensure that the circuit works.

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

The higher the astm grain size number, the finer the gran is. a)-true b)-false